CVE-2018-1000118 : Security Advisory and Response

A vulnerability in Protocol Handler in Github Electron versions lesser than Electron 1.8.2-beta.4 has been identified, which could potentially lead to the execution of arbitrary commands. This vulnerability can be exploited if the victim opens an electron protocol handler in their browser. Fortunately, this vulnerability has been addressed in Electron 1.8.2-beta.5 as a part of the fix for CVE-2018-1000006. The issue stemmed from an incomplete fix, where the black list used for prevention was not case insensitive, thereby enabling a potential bypass by attackers.

Understanding CVE-2018-1000118

This section provides insights into the nature and impact of the CVE-2018-1000118 vulnerability.

What is CVE-2018-1000118?

CVE-2018-1000118 is a Command Injection vulnerability in Protocol Handler in Github Electron versions prior to Electron 1.8.2-beta.4. It allows attackers to execute arbitrary commands by exploiting the electron protocol handler in the victim's browser.

The Impact of CVE-2018-1000118

The vulnerability poses a significant risk as it enables threat actors to execute malicious commands on the victim's system, potentially leading to unauthorized access, data theft, or further compromise of the affected system.

Technical Details of CVE-2018-1000118

This section delves into the technical aspects of the CVE-2018-1000118 vulnerability.

Vulnerability Description

The vulnerability in Protocol Handler in Github Electron versions prior to Electron 1.8.2-beta.4 allows for Command Injection, enabling the execution of arbitrary commands by malicious actors.

Affected Systems and Versions

Affected Product: Github Electron
Vulnerable Versions: Versions prior to Electron 1.8.2-beta.4

Exploitation Mechanism

The vulnerability can be exploited when a user opens an electron protocol handler in their browser, providing an avenue for attackers to execute malicious commands.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2018-1000118.

Immediate Steps to Take

Update Electron to version 1.8.2-beta.5 or later to patch the vulnerability.
Avoid opening unknown or suspicious electron protocol handlers in web browsers.

Long-Term Security Practices

Implement robust security measures to prevent command injection attacks.
Educate users on safe browsing practices and the risks associated with opening untrusted links.

Patching and Updates

Regularly update Github Electron to the latest versions to ensure protection against known vulnerabilities.